The star cluster Westerlund 1and the positions of the magnetar and its probable former companion star

This image of the young star cluster Westerlund 1 was taken with the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile. Although most stars in the cluster are hot blue supergiants, they appear reddish in this image as they are seen through interstellar dust and gas. European astronomers have for the first time demonstrated that the magnetar in this cluster — an unusual type of neutron star with an extremely strong magnetic field — probably was formed as part of a binary star system. The discovery of the magnetar’s former companion (Westerlund 1-5) elsewhere in the cluster helps solve the mystery of how a star that started off so massive could become a magnetar, rather than collapse into a black hole.

Telif:

ESO

Görüntü Hakkında

Kimlik:eso1415b
Tür:Kolaj
Yayın tarihi:14 Mayıs 2014 12:00
Bağlantılı bültenler:eso1415
Boyut:1261 x 1261 px

Nesne Hakkında

Adı:Westerlund 1
Tür:Milky Way : Star : Grouping : Cluster
Uzaklık:15000 ışık yılı
Constellation:Ara
Kategori:Star Clusters

Görüntü Türleri

Büyük JPEG
422,3 KB

Koordinatlar

Position (RA):16 47 4.02
Position (Dec):-45° 51' 4.96"
Field of view:4.99 x 4.99 arcminutes
Yönelim:Kuzey yönü 0.1° sağ derece kadar dik konumdan sapma göstermektedir

Renkler & Filtreler

BantDalgaboyuTeleskop
Optik
B
451 nmMPG/ESO 2.2-metre telescope
WFI
Optik
V
539 nmMPG/ESO 2.2-metre telescope
WFI
Optik
R
651 nmMPG/ESO 2.2-metre telescope
WFI

 

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